In 2008, Judge Wynne began her legal career as an Assistant Criminal District Attorney for Collin County. As a prosecutor in Collin County for nearly 10 years, she tried over 100 cases to juries. She worked in the Misdemeanor, Felony, Crimes Against Children, Civil Asset Forfeiture, Mental Commitments, and Juvenile Divisions. She prosecuted a very wide variety of offenses ranging from misdemeanors such as a driving while intoxicated and assault family violence, to complex felony offenses, including arson, murder, sexual assaults, intoxication manslaughter, physical and sexual offenses committed against children, and aggravated offenses. She was a participant in several specialty courts, including misdemeanor and felony drug courts, juvenile drug court, and a specialty court aimed at preventing human trafficking. Her passion for education and desire to help at-risk youth led her to transition to juvenile prosecution so she could help better educate and assist in the rehabilitation process, so kids have the necessary tools and information to make better life decisions. She has been a featured speaker for state-wide campaigns educating on the dangers of social media and has been a guest speaker and conducted training at youth forums, schools, and with law enforcement agencies.

Through her experience at the District Attorney’s Office, Judge Wynne observed what would happen to children when their best interests were not put first. This led Judge Wynne to her practice of family law. She recognizes the importance of a child’s home life and how it can impact a child’s future.  On September 19, 2019, Governor Abbott appointed Judge Lindsey Wynne to be the Judge of the 468th District Court, a court dedicated to family and CPS matters. Judge Wynne took the bench on October 1, 2019.